- Fixed a bug regarding IfcUnitAssignment

- Separate IFC parsing library and geometry libraries [#3395025]
- Added example for IfcParse usage without geometry or Open CASCADE functionality
- Cleanup of vcproj Open CASCADE dependencies
- Added function to query parent class type in IfcExpressParser.py

src/ifcgeom/IfcRegisterGeomHeader.h

@@ -0,0 +1,9 @@
+#include "IfcRegisterUndef.h"
+#define CLASS(T,V) bool convert(const T::ptr& L, V& r);
+#define SHAPE(T) CLASS(T,TopoDS_Shape)
+#define WIRE(T) CLASS(T,TopoDS_Wire)
+#define FACE(T) CLASS(T,TopoDS_Face)
+#define CURVE(T) CLASS(T,Handle(Geom_Curve))
+#include "IfcRegisterDef.h"
+
+#include "IfcRegister.h"